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Carl Sagan, seen here with a model of Viking lander, popularized the aphorism. "Extraordinary claims require extraordinary evidence" (sometimes shortened to ECREE), [1] also known as the Sagan standard, is an aphorism popularized by science communicator Carl Sagan. He used the phrase in his 1979 book Broca's Brain and the 1980 television ...
Carl Edward Sagan (/ ˈ s eɪ ɡ ən /; SAY-gən; November 9, 1934 – December 20, 1996) was an American astronomer, planetary scientist and science communicator.His best known scientific contribution is his research on the possibility of extraterrestrial life, including experimental demonstration of the production of amino acids from basic chemicals by exposure to light.
Broca's Brain: Reflections on the Romance of Science is a 1979 book by the astrophysicist Carl Sagan. Its chapters were originally articles published between 1974 and 1979 in various magazines, including The Atlantic Monthly, The New Republic, Physics Today, Playboy, and Scientific American. In the introduction, Sagan wrote: [1]
The Smithsonian article by Paul Trachtman argues that Sagan relates issues of government choices and declining scientific thinking skills to pseudoscience topics like astrology and faith healing but ignores other issues that may be causing governmental bodies and other individuals to turn away from science. One such issue is consequences of ...
Feminists also took issue with this choice for the same reason. [14] To appease these criticisms, a second illustration of a similar couple was provided, with the woman raising her hand instead. [3] Carl Sagan regretted that the figures in the finished engraving failed to look panracial.
Astronomer Carl Sagan touched upon the issue in his book Broca's Brain (1979), seeing problems in Temple's hypothesis. As an example, Sagan believes that because the Dogon seem to have no knowledge of another planet beyond Saturn which has rings, their knowledge is therefore more likely to have come from European, and not extraterrestrial ...
The public's association of Sagan with the phrase "billions and billions" came from a Tonight Show skit. Parodying Sagan's affect, Johnny Carson quipped "billions and billions". [2] The phrase has, however, now become a humorous fictitious unit—the sagan. Aside from using the catchphrase as the title of the book, Sagan's introduction also ...
By 1974, the controversy surrounding Velikovsky's work had reached the point where the American Association for the Advancement of Science felt obliged to address the situation, as it had done in relation to UFOs, and devoted a scientific meeting to Velikovsky. The meeting featured, among others, Velikovsky himself and Carl Sagan.